| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $19,577 | $14,223 |
| 2016 | $18,801 | $13,367 |
| 2017 | $20,083 | $14,975 |
| 2018 | $20,083 | $14,520 |
| 2019 | $19,725 | $14,372 |
| 2020 | $19,884 | $14,531 |
| 2021* | $19,884 | $14,383 |
| 2022* | $19,884 | $14,236 |
| 2023* | $19,884 | $14,091 |
| 2024* | $19,884 | $13,947 |
| 2025* | $19,884 | $13,805 |
